Results 1 to 9 of 9

Thread: Choppy video only when recording

  1. #1
    Join Date
    Oct 2006
    Location
    USA
    Posts
    44

    Choppy video only when recording

    I get choppy playback, but only when recording or watching live TV. Here is my hardware configuration:

    GB-PVR version: 1.1.5
    Processor: AMD Athlon 1.68 GHz
    Ram: 512 MB
    Video card: NVidia GeForce4 MX 4000 with latest drivers
    OS: Windows XP Pro SP2
    HauppaugeWinTV-PVR 500 MCE
    Using gbpvr.exe

    I have tried increasing the ram to 1.5 gigs. I have tried an ATI 9600 video card. I am using the 1.87MB 6.05.01.0902 quartz.dll file. I am using no plugins. I have tried VMR7, VMR9 and Overlay. I've tried both InterVideo and Cyberlink decoders. I've uninstalled AC3Filter. None of these seems to make a difference.

    Hopefully, I've provided the information necessary to determine what I'm doing wrong, but if not, let me know what else I need to post. Thanks for your help.

  2. #2
    Join Date
    Nov 2003
    Location
    NextPVR HQ, Wellington, New Zealand
    Posts
    76,110
    Maybe try defragmenting your disk.

  3. #3
    Join Date
    Oct 2006
    Location
    USA
    Posts
    44
    I took your advice and defragmented my drives. They needed it, but I still get choppy playback when recording. It doesn't seem to have helped at all. Any other suggestions, please?

  4. #4
    Join Date
    Nov 2003
    Location
    NextPVR HQ, Wellington, New Zealand
    Posts
    76,110
    I'm not sure. Try other combinations of audio/video decoder.

  5. #5
    Join Date
    May 2006
    Location
    St. Catharines, Ontario, Canada
    Posts
    824
    I'm guessing it's your cpu.
    is it peaked at 100% when the choppiness occurs?

    edit:
    another thing to try is different video/audio decoders. I guess the cpu should be able to handle recording and watching at the same time.
    Try the dscaler decoder, i've had good luck with it on similar hardware.
    ----------------------
    PVRX2 1.3.11
    Shuttle SG33G5 Case
    Core2Duo E8400 3Ghz -- 4 GB RAM
    Hauppauge PVR-150
    Adaptec AVC-3610 Dual Tuner
    Onboard Intel GMA 3100 through HDMI -- 500GB
    37" Westinghouse LCD (1920 x 1080p)

    Projects
    Program Image Tool

  6. #6
    Join Date
    Mar 2005
    Posts
    1,406
    Also, check the I/O mode the controller is using. If it's a PATA drive it should be using an Ultra DMA mode but there are a variety of reasons that XP will silently downgraded to PIO mode. If so, it could explain the stutter while recording.

  7. #7
    Join Date
    Oct 2006
    Location
    Hamilton New Zealand
    Posts
    4,544
    you do have 2 physical harddrives (not just 2 partitions on the one harddrive)

  8. #8
    Join Date
    Oct 2006
    Location
    USA
    Posts
    44
    Quote Originally Posted by wtg View Post
    Also, check the I/O mode the controller is using. If it's a PATA drive it should be using an Ultra DMA mode but there are a variety of reasons that XP will silently downgraded to PIO mode. If so, it could explain the stutter while recording.
    This was the problem. Thanks, all, for your concern and attention to this matter. I intend to add a subsection to the playback page in the wiki explaining the problem and how to rectify it once I get wiki edit rights. If anyone wants to beat me to it, feel free. Thanks again.


    Quote Originally Posted by stustunz View Post
    you do have 2 physical harddrives (not just 2 partitions on the one harddrive)
    I have 3 drives and 4 partitions. Is there a pitfall here I should be aware of?

  9. #9
    Join Date
    Oct 2006
    Location
    Hamilton New Zealand
    Posts
    4,544
    just make sure you have your live tv buffer and recordings saved to a seperate drive from your operating system
    spreads the read/writing to drives

    glad you got it sorted

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •